Control specifications
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Control method
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Soft-PWM control/high carrier frequency PWM control (V/F control, Advanced magnetic flux vector control, General-purpose magnetic flux vector control, Optimum excitation control are available)
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Output frequency range
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0.2 to 400Hz
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Frequency setting resolution
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Analog input
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0.06Hz/60Hz (terminal2, 4: 0 to 10V/10bit)
0.12Hz/60Hz (terminal2, 4: 0 to 5V/9bit) 0.06Hz/60Hz (terminal4: 0 to 20mA/10bit)
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Digital input
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0.01Hz
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Frequency accuracy
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Analog input
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Within ±0.5% of the max. output frequency (25°C ±10°C)
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Digital input
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Within 0.01% of the set output frequency
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Voltage/frequency characteristics
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Base frequency can be set from 0 to 400Hz, Constant-torque/variable torque pattern can be selected
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Starting torque
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200% or more (at 0.5Hz)...when Advanced magnetic flux vector control is set (3.7K or less)
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Torque boost
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Manual torque boost
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Acceleration/deceleration time setting
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0.01 to 360s, 0.1 to 3600s (acceleration and deceleration can be set individually), linear or S-pattern acceleration/ deceleration modes are available.
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DC injection brake
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Operation frequency (0 to 120Hz), operation time (0 to 10s), operation voltage (0 to 30%) can be changed.
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Stall prevention operation level
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Operation current level can be set (0 to 200% adjustable), whether to use the function or not can be selected
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Operation specifications
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Frequency setting signal
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Analog input
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Two terminals
Terminal 2: 0 to 10V, 0 to 5V can be selected
Terminal 4: 0 to 10V, 0 to 5V, 4 to 20mA can be selected
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Digital input
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The signal is entered from the operation panel or parameter unit. Frequency setting increment can be set.
4 digit BCD or 16bit binary data (when the option FR-A7AX E kit is used)
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Start signal
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Forward and reverse rotation or start signal automatic self-holding input (3-wire input) can be selected.
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Input signal
(Standard control circuit terminal model:Seven terminals
Safety stop function model: Six terminals)
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The following signals can be assigned to Pr. 178 to Pr.184 (input terminal function selection): multi-speed selection, remote setting, stop-on contact selection, second function selection, terminal 4 input selection, JOG operation selection, PID control valid terminal, brake opening completion signal, external thermal input, PU-External operation switchover, V/F switchover, output stop, start self-holding selection, forward rotation, reverse rotation command, inverter reset, PU-NET operation switchover, External-NET operation switchover, command source switchover, inverter operation enable signal, and PU operation external interlock
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Operational functions
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Maximum/minimum frequency setting, frequency jump operation, external thermal relay input selection, automatic restart after instantaneous power failure operation, forward/reverse rotation prevention, remote setting, brake sequence, second function, multi-speed operation, stop-on contact control, droop control, regeneration avoidance, slip compensation, operation mode selection, offline auto tuning function, PID control, computer link operation (RS-485)
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Safety stop function *2
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Safety shutoff signal can be input from terminals S1 and S2. (compliant with EN ISO 13849-1 Category 3 / PLd EN62061 / IEC61508 SIL2)
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Output signal
Open collector output (Two terminals) Relay output (One terminal)
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The following signals can be assigned to Pr.190 to Pr.192 (output terminal function selection): inverter operation, up- to-frequency, overload alarm, output frequency detection, regenerative brake prealarm, electronic thermal relay function prealarm, inverter operation ready, output current detection, zero current detection, PID lower limit, PID upper limit, PID forward/reverse rotation output, brake opening request, fan alarm*1, heatsink overheat pre- alarm, deceleration at an instantaneous power failure, PID control activated, safety monitor output*2, safety monitor output2*2, during retry, life alarm, current average value monitor, remote output, alarm output, fault output, fault output 3, and maintenance timer alarm
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Operating status
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For meter
Pulse train output (Max. 2.4kHz: one terminal)
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The following signals can be assigned to Pr.54 FM terminal function selection: output frequency, motor current (steady), output voltage, frequency setting, motor torque, converter output voltage, regenerative brake duty, electronic thermal relay function load factor, output current peak value, converter output voltage peak value, reference voltage output, motor load factor, PID set point, PID measured value, output power
Pulse train output (1440 pulses/s/full scale)
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Indication
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Operation panel
Parameter unit (FR-PU07)
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Operating status
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The following operating status can be displayed: output frequency, motor current (steady), output voltage, frequency setting, cumulative energization time, actual operation time, motor torque, converter output voltage, regenerative brake duty, electronic thermal relay function load factor, output current peak value, converter output voltage peak value, motor load factor, PID set point, PID measured value, PID deviation, inverter I/O terminal monitor, I/O terminal option monitor, output power, cumulative power, motor thermal load factor, and inverter thermal load factor.
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Fault record
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Fault record is displayed when a fault occurs. Past 8 fault records (output voltage/current/frequency/cumulative energization time right before the fault occurs) are stored
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Interactive guidance
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Function (help) for operation guide *3
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Protective/warning function
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Protective functions
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Overcurrent during acceleration, overcurrent during constant speed, overcurrent during deceleration, overvoltage during acceleration, overvoltage during constant speed, overvoltage during deceleration, inverter protection thermal operation, motor protection thermal operation, heatsink overheat, input phase failure*5, output side earth (ground) fault overcurrent at start*4, output phase failure, external thermal relay operation *4, option fault *4, parameter error, internal board fault, PU disconnection, retry count excess *4, CPU fault, brake transistor alarm, inrush resistance overheat, communication error, analog input error, USB communication error, brake sequence error 4 to 7 *4, safety circuit fault *2
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Warning functions
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Fan alarm*1, overcurrent stall prevention, overvoltage stall prevention, PU stop, parameter write error, regenerative brake prealarm *4, electronic thermal relay function prealarm, maintenance output *4, undervoltage, operation panel lock, password locked, inverter reset, safety stop *2
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Environment
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Surrounding air temperature
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-10°C to +50°C (non-freezing) (-10°C to +40°C for totally-enclosed structure feature) *6
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Ambient humidity
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90%RH or less (non-condensing)
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Storage temperature*7
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-20°C to +65°C
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Atmosphere
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Indoors (without corrosive gas, flammable gas, oil mist, dust and dirt etc.)
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Altitude/vibration
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Maximum 1000m above sea level, 5.9m/s 2 or less at 10 to 55Hz (directions of X, Y, Z axes)
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